If for a bivariate data: (x; – x)2 = 10,26y; - y)2 = 8 & 2(xi – x)(yi – y) = 7.8.
Find the Karl Pearson's coefficient of correlation...

The gades foundation and hbm corporation are eager to donate generously to their favorite charities. the gades foundation donated $250 in the first month, and each month afterward their cumulative donation total increases by 100$ the hbm corporation donated $64, in the first month, and each month afterward their cumulative donation total increases by 75%. in which month will the hbm corporation's cumulative donation total first exceed the gades foundations' cumulative donation total?

What is the value of x? enter your answer in the box. x =

The product of 3 and a number increased by 8 is 31